@mixin rotateZ($time:2s) {
    animation: rotateZ  linear infinite $time normal;
    -webkit-animation: rotateZ  linear infinite $time normal;
}
@keyframes rotateZ {
    0%{
        transform: rotate(0deg);
        -webkit-transform: rotate(0deg);
        -moz-transform: rotate(0deg);
        -ms-transform: rotate(0deg);
        -o-transform: rotate(0deg);
    }
    100%{
        transform: rotate(360deg);
        -webkit-transform: rotate(360deg);
        -moz-transform: rotate(360deg);
        -ms-transform: rotate(360deg);
        -o-transform: rotate(360deg);
}
    
}